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Re: [TenTec] Century 22

To: Discussion of Ten-Tec Equipment <tentec@contesting.com>, Josh Gibbs <gibbsjj@gmail.com>
Subject: Re: [TenTec] Century 22
From: "Bob, WB2VUF via TenTec" <tentec@contesting.com>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Sun, 21 Jun 2020 13:14:02 -0400
List-post: <mailto:tentec@contesting.com>
Congratulations, Josh, well done!

As others have answered, yes, it is normal for the calibration to shift when changing bands.  This is a function of the tolerances of the heterodyne oscillator crystals.  Ten Tec could have put a trimmer capacitor on each crystal, but that would have driven up costs.  I thin the Delta 580 has the same issue.  Anyway, if you're lucky, you have the calibrator.  If, not, Mike, WB8VGE has an aftermarket design.

It should be possible to rig an external digital display, but analog is part of the radio's charm.

I find that the C22 has really nice audio and the audio filter is superb.  In, fact, the audio filter takes out the neighborhood plasma TV and switching power supply buzz where a noise blanker won't.

The internal speaker is good, but the C22 sounds even better when an external speaker is plugged into the Phones jack.

Elastic dial cord tip:  Before replacing the elastic, make yourself a sketch of the assembly.  The elastic will last longer if you "park" the transceiver at the low end of the band when not in use.

Gotta love the "desert tan" front panel.  I don't think Ten Tec used that in any other product.  I slipped a red rubber filter over the meter lamp in mine; the red illumination looks cool and saves your night vision!

73,

Bib WB2VUF

On 6/20/2020 10:01 PM, Josh Gibbs wrote:
Hello Ten-Tec Friends,

Very happy to report that my C22 is back on the air!! I had a series of
nice QSOs this afternoon, with good reports from Utah, Idaho, and CA.

In the end the problem with the transmitter turned out to be:

    1. One of the drivers on the PA board had a broken solder joint.
    2. The coax input to the driver board wasn't making good contact.

Easy stuff!!

Question: it is normal for the tuning skirt calibration to not survive band
changes? Put another way, is it normal to have to slightly recalibrate the
tuning skirt each time you change bands?

This is the first rig I've ever owned that doesn't have a digital frequency
display =)

73,

-Josh WU7H

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